... chuck diameter:12mm No-load speed: 28000rpm 3612 Electric Router wood working router bits J1Z-DD-12SpecificationsItem NO J1Z-DD-12Rated ... Size 65*52*47CMOur products include various armatures and axis,electric drills,electric hammers, marble cutters, angle grinders, trimmers, circular saws, die ... of secondary machinery, as well as 8 assembly lines. 3612 Electric Router wood working router bits